sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
AI-generated identification · may be incorrectHardness of 7 on Mohs scale, white to clear color, vitreous luster, trigonal crystal system, conchoidal fracture with no cleavage, specific gravity of 2.65.
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Physical properties
Hardness of 7 on Mohs scale, white to clear color, vitreous luster, trigonal crystal system, conchoidal fracture with no cleavage, specific gravity of 2.65.
Formation & geological history
Formed through the mechanical weathering and water transport of quartz veins or parent rocks, accumulating in riverbeds or beaches over millions of years.
Uses & applications
Used in landscaping, decorative gravel, abrasive manufacture, and aggregate for concrete production.
Geological facts
Quartz is one of the most abundant and durable minerals on Earth, highly resistant to both chemical and physical weathering.
Field identification & locations
Easily identified by its high hardness (scratches glass) and lack of cleavage, commonly found in stream beds, beaches, and conglomerate rock formations worldwide.
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Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)
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